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Inviting Plavi

#677db4
Notes

Inviting Plavi (#677DB4) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (223°, 34%, 55%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#677db4
RGB
rgb(103, 125, 180)
HSL
hsl(223, 34%, 55%)
HWB
hwb(223 40% 29%)
OKLCH
oklch(59.5% 0.088 267.0)
P3
color(display-p3 0.4209 0.4876 0.6892)
HSV
hsv(223, 43%, 71%)
LAB
lab(52.78% 6.59 -31.57)
LCH
lch(52.78% 32.25 281.79)
CMYK
cmyk(43%, 31%, 0%, 29%)

Etymology

Inviting
adjective

Latin invītāre, to invite — present-participle of invite. As a color modifier, inviting implies a clear-and-cordial-and-encouraging quality where the hue carries the visual register of warm-inviting-and-encouraging entrance-foyer color tone. Sits at the crisp-and-cheerful end of the grid, parallel to welcoming and hospitable in usage.

Plavi
noun

The Serbo-Croatian word for blue — used across Bosnia, Croatia, Serbia, and Montenegro for the saturated deep blue of Adriatic water and traditional folk-embroidery. The color refers to plavi embroidery thread on Croatian čilim rug: a saturated, slightly cool deep blue with the matte finish of dyed wool thread.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#677db4
Original
#6a82b6
Protanopia
#627bb3
Deuteranopia
#4c8891
Tritanopia
#7c7c7c
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
4.06:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.17:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##677DB4
Display P3
Display P3
color(display-p3 0.4209 0.4876 0.6892)
P3 has subtle headroomOKLCH chroma 0.088

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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